As the dual launches of IGS satellites were all too heavy for the 202 version, i guess, that a 204 is the most likely version.

I guess, that a 204 is doubtful.IGS 1A/1B, IGS-2A/2B and IGS 4A/4B (IGS Optical-3 demo) were dual launched. These are 2024 configuration, but now SRB-A is upgraded to SRB-A3, so launch capability is increased more.

A0288/13 - QXXXX THE JAPANESE SPACE EXPLORATION AGENCY (JAXA) HAS PLANNED A ROCKET LAUNCH. DEBRIS FROM THIS LAUNCH WILL FALL WITHIN AN AREA BOUNDED BY 1305N/13041E 1257N/13240E 0923N/13226E 0930N/13027E BACK TO THE POINT OF ORIGIN. IN THE INTEREST OF SAFETY ALL NON-PARTICIPATING AIR TRAFFIC ARE ADVISED TO AVOID THE NOTAMED AREA. IFR AIRCRAFT UNDER ATC JURISDICTION SHOULD ANTICIPATE CLEARANCE AROUND THE NOTAMED AREA. SFC - UNL, 27 JAN 04:00 2013 UNTIL 27 JAN 06:00 2013. CREATED: 22 JAN 16:13 2013

As the dual launches of IGS satellites were all too heavy for the 202 version, i guess, that a 204 is the most likely version.

I guess, that a 204 is doubtful.IGS 1A/1B, IGS-2A/2B and IGS 4A/4B (IGS Optical-3 demo) were dual launched. These are 2024 configuration, but now SRB-A is upgraded to SRB-A3, so launch capability is increased more.